This is a feature of evolutionary convergence, which is when unrelated species evolve similar traits to adapt to their environment.
What is adapt?Adapt is an open source software platform that enables developers to quickly build, deploy, and manage applications based on microservices architecture. It provides an integrated development environment that allows developers to create new applications using pre-built components, and to manage and monitor existing applications.
These adaptations are a result of natural selection, where organisms with beneficial traits have a better chance of survival and passing on their genes. For example, both dolphins and sharks have adapted to aquatic life, even though they are not closely related. They have both evolved streamlined bodies and fins to help them swim efficiently.
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Which of these statements about skeletal muscles is false?A) Their fibers branch.B) They store nutrient reserves.C) They pull on tendons.D) They support soft tissues.
The correct option is A ; Their fibers branch. A branched fiber is a type of skeletal muscle fiber that is made up of two or more cataclysmically continuous strands.
Skeletal muscle fibers branch or split during extreme muscle loading and subsequent hypertrophy. A skeletal muscle fiber is composed of a single cylindrical muscle cell. A single skeletal muscle can be composed of hundreds or even thousands of muscle fibers bundled together and wrapped in connective tissue. The epimysium is a connective tissue sheath that surrounds each muscle.
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Approximately what percentage of plastics are actually recyclable?
A. 10%
B. 30%
C. 50%
D. 25%
Answer:
B. 30%
Explanation:
The approximate percentage of plastics that are actually recyclable is 30%. This means that out of all the plastic produced, only 30% of it is able to be recycled and reused. The other 70% of plastic either ends up in landfills, where it can take hundreds of years to decompose, or is released into the environment, where it can harm wildlife and ecosystems. It is important to reduce the use of single-use plastics and properly dispose of plastic waste to help minimize the negative impact of plastic on the environment.
Answer:
abt 10%
Explanation:
Most plastics can not be recycled. Most ends up in the landfill. Only about 10% of plastics used can be recycled.
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how does one determine the minimum inhibitory concentration in the broth test? select one: a. reading the concentration on the plastic strip b. testing the fic index c. looking at the growth inhibition zone d. examining the broth for lack of turbidity
One can determine the minimum inhibitory concentration in the broth test by examining the broth for lack of turbidity.
The correct option is option d.
The minimum inhibitory concentration happens to define the in vitro levels of susceptibility or the resistance of some particular bacterial strains to the applied antibiotic. Reliable assessment of the minimum inhibitory concentration has a very significant impact on the therapeutic strategy which will be chosen and also affects efficiency of an infection therapy.
The minimum inhibitory concentration or the MIC is basically the lowest concentration of a chemical, which is usually a drug which happens to prevent the visible growth of the bacterium. The determination of the minimum inhibitory concentration is basically based on turbidity. High turbidity would mean high concentrations of anti microbial drugs whereas lower the turbidity, the lower will be the microbial concentration.
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Sometimes a hypothesis is not supported. Yet, scientists consider the findings valuable. State one reason scientists would value an experiment that does not support the initial hypothesis.
One reason through which scientists would value an experiment that does not support the initial hypothesis is as follows:
It supports them to make new discoveries and refine their hypotheses on the basis of some facts. What is a Hypothesis?A hypothesis may be defined as a testable statement that signifies the relationship between two or more variables or a proposed explanation for some observed phenomenon.
Hypotheses are always constructed and tested with respect to the experiments. When the outcome of an experiment supports a hypothesis, such a hypothesis is accepted.
But on contrary, when the outcomes of an experiment do not support a hypothesis, such a hypothesis is refined and retested.
Therefore, the hypothesis helps scientists to make new discoveries and refine their hypotheses on the basis of some facts and findings.
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Explain the roles of white blood cells when a pathogen enters the body
Answer:
They are attracted towards the infective agents, then surround and engulf them. Once inside the cell, these white cells then release chemicals that break the organism down and destroy it. Other white cells, called lymphocytes, target attacks in another way, by making antibodies.
Explanation:
(:
raits thought to be caused by the combined effects of multiple genes and environmental factors are referred to by which term?
Complex traits are used to describe traits that are thought to be caused by the combined effects of multiple genes and environmental factors. Here option D is the correct answer.
Complex traits are traits that are influenced by multiple genes and environmental factors. These traits are often referred to as "polygenic" or "multifactorial" traits, as they result from the interplay between many different genetic and environmental factors. Examples of complex traits include height, body mass index, intelligence, and various diseases such as diabetes, heart disease, and cancer.
In contrast, simple traits are traits that are influenced by a single gene and have a straightforward pattern of inheritance. These traits are often referred to as "Mendelian" traits, after Gregor Mendel, the father of genetics. Examples of simple traits include eye color, blood type, and sickle cell anemia.
Complete question:
What term is used to describe traits that are thought to be caused by the combined effects of multiple genes and environmental factors?
A. Simple traits
B. Polygenic traits
C. Mendelian traits
D. Complex traits
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Fats and oils are made up of ______________ and ______________.
explain where the carbon dioxide comes from
Answer:
Carbon dioxide comes from a variety of sources, both natural and man-made. On the natural side, carbon dioxide is released through respiration, decay of organic matter, volcanic eruptions, and the ocean. On the man-made side, carbon dioxide is released through the burning of fossil fuels, deforestation, and industrial processes.
Answer:
Hi there. Carbon dioxide comes from plants when they go through photosynthesis and take oxygen from the air and convert it to carbon dioxide!
Brainiest? Can you click on the crown on this answer? Thanks!
Explain why the Tonga Trench region and the Chile Trench region produce earthquakes with different focal depths. be specific
I have no idea to what this answer would be
what change did the national census of 1890 indicate that had not previously occurred in u.s. history?
This is the first investigation to demonstrate the presence of Americans across the whole of the biologically diverse country.
What does the human body contain?As according Carl Larsson' Latin two name system, scientists define "human" as. This consists of the names of the "genus" and the "species." The species Homo (man) and species sapiens are used to classify humans (wise). Homo sapiens is the term used in science to describe humans.
What does biology entail?Definition. All of the branches of the natural sciences that focus on different facets of life's processes are included in the biological sciences. The notion spans all species, from bacteria to animals and plants, and incorporates morphology, physiology, cell biology, biochemistry, and biophysics.
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pls help
Why are the cells produced via mitosis identical to one another?
Answer:
In short,this is Because each daughter cell carries the exact same chromosomes of the parent.
Suppose that 16 pairs of pintaloosa horses have one offspring per pair. How many of each phenotype would be expected? Determine the number out of 16 expected for each phenotype. Only count phenotypes for offspring expected to live past one week of age.
The number of solid overo is 2, few spot is 3 and white Overo is 0. A pantaloons is a type of horse which is produced from the breeding between overo and leopard.
So from the parameters given in the question, 2 different individuals possess genotype for overo (Ovo) phenotype.
It is very clear from the complete question that the number of:
Solid is 2
Few spot is 3
White Overo is 0
This goes to say that just only out of the 16 pair will have an overo phenotype.
Overo genotype
Ov ov
Ov OvOv Ovov
ov Ovov ovov
Leopard genotype
Lp lp
Lp LpLp Lplp
lp Lplp lplp
The expected phenotype for:
Solid is related to the Overo gene and its genotype is ovov, so from the Punnett's square, the possibility for a offspring is 1 out of 16;
Fewspot is related to both Overo and Leopard gene. A fewspot horse is both Ovov and LpLp, so the number is 3 out of 16;
White Overo is related to the Overo gene and these offspring dies at birth. Since it is asking for the number of ofspring to live past one week of age, there will 0 white overos;
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Full Question ;
In horses, the Overo gene, Ov, produces a white splotch pattern on the coat. The overo phenotype is seen only when a horse has one Ov copy, Ovov. Horses with two Ov copies, OvOv, die soon after birth and are called white overo because they are completely white. Horses with no Ov copies are solid colored, ovov. The Leopard complex gene, Lp, shows incomplete dominance and controls white spotting. One Lp allele, Lplp, produces the leopard phenotype, in which there are spots everywhere. Two Lp alleles, LpLp, produce the fewspot phenotype, in which the horse is mostly white with colored spots. A horse that is both overo and leopard is called pintaloosa, and these horses are spotted with splotches. A horse that is overo and fewspot is considered fewspot because the white areas from Lp is indistinguishable from the white from Ov.
Suppose that 16 pairs of pintaloosa horses have one offspring per pair. How many of each phenotype would be expected? Determine the number out of 16 expected for each phenotype. Only count phenotypes for offspring expected to live past one week of age.
Number of:
Solid:____
Fewspot:_____
White Overo:______
Look at the diagram. The function of part 1 is to provide an efficient __________ supply. What one word completes the sentence?
when rna transcript is first made in a eukaryote, it requires further processing to become messenger rna (mrna). what steps are needed to produce a mature mrna?
Pre-mRNA is transcribed from the DNA by RNA polymerase and requires further processing to become messenger RNA (mRNA). The steps for producing a mature mRNA are capped, splicing, polyadenylation, export, and protein synthesis.
What is RNA transcript?The enzyme RNA polymerase initially transcribes the RNA transcript from the DNA in eukaryotes. This transcript is known as pre-mRNA, and it must be processed further to produce messenger RNA (mRNA). The following are the stages for creating mature mRNA:
1. Capping: A 7-methylguanosine cap is added to the 5' end of the pre-mRNA to modify it. This prevents mRNA degradation and aids in the effective translation of mRNA into protein.
2. Splicing: The pre-mRNA is cut at the introns and the exons are spliced together in this phase. This results in the formation of mature mRNA, which then exits the nucleus.
3. Polyadenylation: The insertion of a poly-A tail to the 3' end of the mRNA modifies it. This is beneficial in the efficient translation of the mRNA into protein.
4. Export: The mature mRNA is exported out of the nucleus and into the cytoplasm for protein synthesis.
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assume you are using the explorer 11/12. on posterior teeth, which part of the tooth is instrumented twice: once when the instrument is pointing distally, and again when it is pointed mesially?
When using the Explorer 11/12 on posterior teeth, the distal surface of the tooth is instrumented twice - once when the instrument is pointing distally and again when it is pointing mesially.
This is done to ensure that the instrument reaches the deepest parts of the pocket and removes any debris that may have been left behind.
The instruments used in root canal treatment include endodontic files, reamers, and burs. Endodontic files are used to clean and shape the root canal, and are available in a variety of shapes and sizes. Reamers are used to enlarge the root canal, while burs are used to remove excess cement, debris, and access the root canal. All of these instruments must be used with care and precision to ensure the best outcome for the patient.
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Where would you find the genotypes for the offspring or babies?
The genotypes of the kid are created at the junction of the parent's alleles. The Punnett square findings may be used to calculate the odds of certain genotypes and phenotypes.
Punnett squares are diagrams used to forecast the outcomes of traditional breeding experiments. They believe in Mendelian inheritance, as well as the rules of segregation and independent assortment. During meiosis, chromatids are divided so that each gamete receives just one allele.
Furthermore, various genes are distributed and inherited independently of one another; the chance of one phenotype does not alter the probability of another. The genotypes of both parents must be known to generate a Punnett square.
The alleles of one parent are displayed across the top of the table, while the alleles of the other parent are listed along the left side. The genotypes of the child are created at the junction of the parent's alleles. The Punnett square findings may be used to calculate the odds of certain genotypes and phenotypes.
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in order for an embryo to develop male genitals, the embryo must?
In order for an embryo to develop male genitals, the embryo must receive hormonal and genetic signals.
An embryo is the first stage of a multicellular organism's development. Embryonic development is the phase of life cycle that starts just after the male sperm cell fertilises the female egg cell in sexually reproducing animals.
The consequence of the union of these two cells is a single-celled zygote that divides several times to give rise to blastomere cells. The blastomeres are structured as a solid ball, or morula, which when it reaches a specific size absorbs fluid to form a hollow, or blastocoel. It is then known as a blastula, or a blastocyst in animals, after the structure.
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SOMEONE PLS EXPLAIN PLS "a diploid reproductive cell dovides mitotically to form four haploid cells called spermatids"
Explanation:
the mother cell has 46 chromosomes (diploid) then divide into 2 daughter cells (haploid) then those 2 daughter cells form another 4 daughter cells that are (haploid) each sperm cell is haploid and each egg cell is haploid when the fertilization takes place the two cells form a diploid zygote.
ou generate a plant with a mutation in the enzyme rubisco, and this mutant enzyme now shows optimal activity at a ph of 7.5. what consequences might this mutation have on the regulation of the calvin cycle?
The mutation in rubisco leading to optimal activity at a pH of 7.5 may affect the regulation of the Calvin cycle by altering the rate of carbon dioxide (CO2) fixation.
If the pH deviates from 7.5, the activity of the mutated rubisco enzyme may decrease, leading to a decrease in the rate of CO2 fixation. This can impact the rate of photosynthesis and the overall efficiency of the plant's energy production.
Additionally, changes in pH can also affect the activity of other enzymes involved in the Calvin cycle, potentially disrupting the entire process and leading to growth and metabolic abnormalities in the plant.
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DNA is a very long molecule that has chemicals in a special order. Parts of dna molecules are what we call?
Answer:DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.
The four types of nitrogen bases found in nucleotides are: adenine (A), thymine (T), guanine (G) and cytosine (C). The order, or sequence, of these bases determines what biological instructions are contained in a strand of DNA. For example, the sequence ATCGTT might instruct for blue eyes, while ATCGCT might instruct for brown.
Explanation:
What are three factors that could prevent an organism from long ago from ever turning up in a fossil collection today?
Answer:
Explanation:
The organism generally must have hard parts such as shell, bone, teeth, or wood tissue; the remains must escape destruction after death; and the remains must be buried rapidly to stop decomposition.
what pieces of evidence support the hypothesis that tetrapods evolved from lobeâfin fish?
The hypothesis that tetrapods evolved from lobe-finned fish is supported by multiple lines of evidence, including the fossil record, genetic analysis, and comparative anatomy. While there is still much to learn about the evolution of tetrapods, this hypothesis provides a compelling framework for understanding how these diverse and fascinating animals came to be.
Tetrapods are a diverse group of animals that includes all living and extinct amphibians, reptiles, birds, and mammals. Scientists have long been interested in the origin and evolution of tetrapods, and one of the most well-supported hypotheses is that they evolved from lobe-finned fish. In this answer, we will examine the pieces of evidence that support this hypothesis.
Fossil evidence: One of the most compelling lines of evidence for the evolution of tetrapods from lobe-finned fish is the fossil record. Fossils of several species of lobe-finned fish have been found that show a range of adaptations that are thought to have been important in the evolution of tetrapods. For example, some lobe-finned fish had limb-like fins with a series of bones that resemble the bones found in the limbs of tetrapods. Fossils of early tetrapods have also been found that show a transitional form between fish and tetrapods, with limbs that were used for both swimming and walking on land.
Genetic evidence: Another line of evidence for the evolution of tetrapods from lobe-finned fish comes from genetic studies. Genetic analysis has shown that tetrapods are more closely related to lobe-finned fish than to other types of fish. This supports the idea that tetrapods evolved from a group of lobe-finned fish that were more closely related to tetrapods than to other fish.
Comparative anatomy: A third line of evidence comes from comparative anatomy. Many of the features that are unique to tetrapods, such as limbs, lungs, and the ability to walk on land, are also found in lobe-finned fish. For example, the bones in the limbs of tetrapods are similar in shape and structure to the bones in the fins of lobe-finned fish. This suggests that the limbs of tetrapods evolved from the fins of lobe-finned fish.
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the presence of increased numbers of circulating nucleated red blood cells may occur with a markedly regenerative anemia. when this occurs in the absence of anemia and is accompanied by basophillic stippling, it may indicate
When this occurs in the absence of anemia and is accompanied by basophilic stippling, it may indicate : lead Poisoning.
What is meant by regenerative anemia?If bone marrow is responding to anemia, then anemia can be classified as regenerative and the cause for anemia is hemorrhage or hemolysis. Regenerative response is assessed by identifying immature anucleate red blood cells in the peripheral blood.
Regenerative anemia may be caused by poisoning, infection, trauma, or other conditions that may cause loss of blood or hemolysis ( that is shortened life span of erythrocytes). With regenerative anemia, bone marrow responds properly to the decreased red cell mass by increasing RBC production and also releasing reticulocytes.
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Note: The question given on the portal is incomplete. Here is the complete question.
Question: The presence of increased numbers of circulating nucleated red blood cells may occur with a markedly regenerative anemia. when this occurs in the absence of anemia and is accompanied by basophilic stippling, it may indicate
Lead poisoning
Food poisoning
infection
Anemia
i find a fossil arm bone covered in volcanic ash that i think is a very ancient human ancestor. i want to get a numerical age of it. how do i date it?
To date a fossil, scientists typically use one of two methods: relative dating or absolute dating.
Relative dating involves comparing the fossil to other fossils found in the same location to determine its age based on the geological layer it is found in.
Absolute dating methods, such as radiocarbon dating and potassium-argon dating, provide a numerical age in years. Radiocarbon dating measures the decay of the radioactive isotope carbon-14 and can be used to date organic materials up to around 50,000 years old. Potassium-argon dating measures the decay of potassium-40 into argon-40 and can be used to date materials up to billions of years old.
To use either method, a sample of the fossil or surrounding material must be taken for laboratory analysis. The choice of method depends on the age of the fossil and the type of material it is made of. In your case, given the age of your fossil, potassium-argon dating might be more appropriate. However, it is important to consult with a specialist in the field to determine the most appropriate method and to ensure proper sampling and analysis.
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What are long bundles of contractile proteins found in sarcoplasm?
The long bundles of contractile proteins found in sarcoplasm are called muscle fibers or muscle cells.
These fibers are elongated cells that are specialized for contraction and play a crucial role in the movement and support of the body. The contractile proteins found in muscle fibers are actin and myosin, which are responsible for the shortening of the muscle fibers during contraction.
The sarcoplasm, which is the cytoplasm of the muscle cell, contains a large amount of these contractile proteins and other cellular components necessary for the proper functioning of the muscle cell, such as energy-rich molecules, enzymes, and ion pumps.
The arrangement and interaction of actin and myosin filaments within the muscle fiber determine the strength and speed of contraction, which is critical for the various movements of the body.
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describe how light interacts with pigments in photosystems of the light reactions, and why certain wavelengths of light (green) are not helpful for photosynthesis
In a mechanism known as resonance energy transfer, when one of these pigments is activated by light, it transfers energy to a neighbouring pigment through direct electromagnetic interactions.
What light frequencies are not used in photosynthesis?Chlorophyll, the green pigment present in all photosynthesis cells, absorbs all visible light wavelengths except green, while green is reflected. Because of this, plants appear green to us.
What wavelengths are emitted by green plants but not absorbed?Plants have a green tint because of chlorophyll, which does not absorb green portions of white light. The plant seems to be green because it reflects that particular light wavelength.
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During which of these processes is oxygen consumed?
How do bicarbonates influence biotic factors?
Need help with this biology assigment
Answer:
9: A
10: 80
11:80
12: early stages of survival
13: fish
in woody dicots, the periderm eventually replaces question 6 options: xylem. phloem. epidermis. parenchyma lenticels
in woody dicots, the periderm eventually replaces epidermis. as to response to the increased demand for protection.
The periderm eventually takes the role of the epidermis in woody dicots. A layer of tissue called periderm develops on the outside of the stem and root of woody plants as protection. It is made up of numerous cork cell layers, which are distinguished by their thick walls and capacity to withstand drying.
The original epidermis, or the outermost layer of cells on a stem or root, is gradually covered with periderm as a plant grows. The periderm takes the place of the epidermis in response to the growing need for protection as the plant ages and becoming woody. The periderm acts as a barrier against water loss, as well as a layer of defence against physical harm and pathogen infiltration. The transfer of nutrients and water, however, is carried out by the xylem, phloem, and parenchyma cells, which are significant parts of the vascular system in plants. Lenticels, which can be seen on the surface of stems and roots, are tiny, elevated pores that enable gas exchange between the plant and the atmosphere.
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